Villager Wu Guang feeds pigs that he raised at a farm in Tongren, Guizhou province, in April. [Photo/Xinhua]

Citizens in Zhengzhou buy pork at a local supermarket. [Photo/IC]

A customer selects imported pork at a supermarket in Zhengzhou, Henan province. [Photo by Zhang Tao/For China Daily]

Farmers raise pigs to make a living in Yuping Dong autonomous county, Southwest China's Guizhou province. [Photo/Xinhua]